19982710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3079}}^1$

素因数の和:3156

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19934090

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 295, 590, 649, 1298, 3079, 3245, 6158, 6490, 15395, 30790, 33869, 67738, 169345, 181661, 338690, 363322, 908305, 1816610, 1998271, 3996542, 9991355, 19982710]

約数ペア:

[(1, 19982710), (2, 9991355), (5, 3996542), (10, 1998271), (11, 1816610), (22, 908305), (55, 363322), (59, 338690), (110, 181661), (118, 169345), (295, 67738), (590, 33869), (649, 30790), (1298, 15395), (3079, 6490), (3245, 6158)]